Conn. Gen. Stat. § 10-221q
Sec. 10-221q. Sale of beverages.
(b) Each such board of education or governing authority may permit at schools under its jurisdiction, the sale to students of beverages that are not listed in subsection (a) of this section, provided (1) such sale is in connection with an event occurring after the end of the regular school day or on the weekend, (2) such sale is at the location of such event, and (3) such beverages are not sold from a vending machine or school store.